stack dia. for 3x10

[ryan marquette]

If I can't find an arch I am going to be building an arch for my 3x10 Grimm raised flue pans & I was wondering what I should use for a base stack & what dia. smoke stack. In the catalogs there are many different types of base stacks for a 3' arch & I'm not sure what I need.
Thanks,Ryan

[mapleack]

We have an older 3x10 and the stack is 12" in diameter.

[Sugarmaker]

Ryan,
I also have a 12 inch dia stack on our 3 x 10. Works well. But just to give you something to ponder the 4 x 10 that I saw at oak lodge is a Leader and I think someone said the stack was 20 or 21 inches. Huge. But they are boiling twice as much sap as we do also.

Chris

[fred]

4' arch is typically 18" stack

[802maple]

Probably going to suck twice as much heat up the stack also.